Press Release Summary:
Operating from universal 90-264 Vac input, HDP-190/240 Series offers dual 2.8 and 3.8 V outputs that can directly drive 2.8/3.8 V RGB LED chips. Respective ratings for HDP-190/240 are 192 and 241 W, with delivery of up to 40 and 50 A at 3.8 V and up to 22 and 27.5 A at 2.8 V. Both feature active PFC and output voltage adjustment ranges of 3.6-4 V on 3.8 V output and 2.5-3 V on 2.8 V output. AC/DC circuit design and non-isolated DC/DC buck topology allow efficiencies up to 86% (HDP-240).
Original Press Release:
High Efficiency Enclosed Power Supplies for LED Moving Sign Applications
Sunpower UK's new HDP-190/240 Series are highly efficient enclosed power supplies that address today's Green and energy saving concerns. They allow designers to implement LED moving sign systems with significantly reduced energy consumption. These 1U low profile products both have dual 2.8 V and 3.8 V outputs which can directly drive2.8/3.8 V RGB LED chips; an approach far more efficient than the traditional method of driving these chips from a single 5 V supply using dissipative voltage reduction.
The HDP-190 model is rated at 192 W and delivers up to 40 A at 3.8 V, and up to 22 A at 2.8 V. The HDP-240 is rated at 241 W and provides up to 50 A at 3.8 V, and up to 27.5 A at 2.8 V. Both models feature active PFC, and both offer output voltage adjustment ranges of 3.6 - 4 V on the 3.8 V output, and 2.5 - 3 V on the 2.8 V output. Each operates from a universal 90 - 264 V AC input and each has a LED indicator for power on.
These are rugged units equipped with many features for their demanding target environment. Innovative high-efficiency AC-DC circuit design and non-isolated DC-DC buck topology allows efficiencies of up to 84% (HDP-190) and 86% (HDP-240), even with their low-voltage outputs. The fanless HDP-190 requires only free air convection for an operating temperature range of -30°C to +40°C, while the HDP-240 with its built-in long life DC fan operates from -30°C to +50°C ambient under full load. Operation up to +70°C is also possible for both models with suitable derating, allowing use in a wide range of indoor and outdoor applications.
The HDP-190/240 series have conformally - coated PCBs, providing basic anti-moisture and anti-dust protection from the humidity and dust found in many moving LED sign environments. The units are vibration tested and are also protected for short circuit, overload, over voltage and over temperature conditions, and the HDP-240 has a cooling fan On/Off control. User safety is assured through the series' compliance with UL, CUL, TUV, CB and CE standards, and the units have an input to output isolation resistance of 3 KVAC.
Typical applications include LED electric displays and moving signs, LED TV walls and LED channel letter related installations. All units carry a three year warranty.
Sunpower is the UK arm of a Taiwanese manufacturer that also enjoys extremely strong bonds with other, highly skilled factories and engineers in Taiwan and China. The company delivers a wide range of standard, custom and bespoke power supplies to businesses and organisations across the UK.
These industrial and commercial power products include DIN rail power supplies, led drivers, industrial battery chargers, marine power supplies, ac adapters and plugtops, and sine wave inverters. They are used in rugged, data storage, medical grade, laboratory, EPOS and many other applications. Sunpower's engineers are highly experienced in producing custom design power supplies and their value added service is focused on giving customers 'ready to go' products that resolve all their power supply needs.
Sunpower UK Ltd's Quality Management System is BS-EN-ISO 9001:2008 certified; its factories are also approved to both ISO-9001 and ISO-14001. The company has been ISO certified since August 1997.
Sales and Technical contact:
Sunpower (UK) Ltd
Calleva Business Park
Berkshire RG7 8SN
Tel: +44(0)845 533 0438
Charig Associates Ltd,
24 Honister Gardens
Middlesex HA7 2EH
Tel: +44 (0)208 933 0917